Compositae source details
Anzuinelli, M.; Zarlavsky, G.; Gonzalez, A. M.; Bartoli, A. (2024). Novedades taxonómicas en el género Porophyllum (Asteraceae, Tageteae): rehabilitación de Porophyllum macrolepidium. Darwiniana, nueva serie. 269-283.
557701
10.14522/darwiniana.2024.122.1225 [view]
Anzuinelli, M.; Zarlavsky, G.; Gonzalez, A. M.; Bartoli, A.
2024
Novedades taxonómicas en el género Porophyllum (Asteraceae, Tageteae): rehabilitación de Porophyllum macrolepidium
Darwiniana, nueva serie
269-283
Publication
Available for editors 
Porophyllum macrolepidium (previously included as a synonym of P. ruderale var. ruderale) is reinstated for South America, and its synonymy list is updated. Original descriptions and type material were studied, along with materials from the general collections housed in the main herbaria of Argentina. Field trips were conducted to study the species in its natural habitat. Exomorphological and anatomical di?erences with Porophyllum ruderale var. ruderale and Porophyllum ruderale var. macrocephalum are presented. An extended description of P. macrolepidium is provided, along with illustrations, photographs, vernacular names, phenology, habitat, a map of its geographical distribution, and a dichotomous key to di?erentiate Porophyllum macrolepidium from related species. Additionally, the names P. macrolepidium, P. ruderale var. angustifolium, and P. ruderale var. intermedium have been lectotypifed.
Date
action
by
Porophyllum macrolepidium Malme (status source)
Porophyllum ruderale var. angustifolium Hassl. accepted as Porophyllum macrolepidium Malme (source of synonymy)
Porophyllum ruderale var. angustifolium Hassl. accepted as Porophyllum macrolepidium Malme (source of synonymy)
Lectotype G 00457215, geounit Brazil, identified as Porophyllum ellipticum var. intermedium DC.
Lectotype G G8665/169-170, geounit Paraguay, identified as Porophyllum ruderale var. angustifolium Hassl.
Lectotype G G8665/169-170, geounit Paraguay, identified as Porophyllum ruderale var. angustifolium Hassl.
